Temperature
4749 K
4607 to 4799
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Stellar HostProfile
Kepler-378
Unclassified star • 152.1 pc
Records
19
literature rows
Planets
2
system count
References
15
distinct source labels
TIC: TIC 271354634
Approximate color
from effective temperature
Canonical Summary
Adopted host values from one source row
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: Morton et al. 2016 • System source: TICv8
Mass
0.78 Msun
0.67 to 0.97
Radius
0.72 Rsun
0.60 to 2.06
Age
3.24 Gyr
3.24 to 13.90
Distance
152.1 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.72 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-378
0.72 R☉
System Layout
Known planets
2 planets linked to this host
Kepler-378 b
Transit
◌
Discovery
2014
Period
16.09 days
Radius
0.75 R⊕
Mass
—
Eq. Temp
—
Kepler-378 c
Transit
◌
Discovery
2014
Period
28.91 days
Radius
0.70 R⊕
Mass
—
Eq. Temp
—
Kepler-378 and Its Two Sub-Earth Planets
Kepler-378 is a star 496 light-years away with two planets orbiting it. The host star is 3.24 billion years old and has a reported mass estimate of 0.78 solar masses, along with a radius estimate of 0.72 solar radii. Its reported temperature is 4750 K, which is cooler than the Sun's.
Both planets were discovered in 2014 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Repeated dips help establish orbital periods. Kepler-378 b is a Sub-Earth with a reported radius estimate of 0.75 Earth radii and an orbital period of 16.1 days. Kepler-378 c is also a Sub-Earth, with a reported radius estimate of 0.7 Earth radii and an orbital period of 28.9 days. Among the listed planets, Kepler-378 c has the smallest radius by reported estimates, while Kepler-378 b has the largest. Among the listed planets, Kepler-378 b has the shortest year by reported estimates, at 16.1 days, and Kepler-378 c has the longest, at 28.9 days. Both planets' reported radius estimates are smaller than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
19
Stellar refs
14
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4799 | 0.97 | 1.82 | — | — | — | 152.1 | Q1-Q16 KOI Table | TICv8 |
| 4791.7 | — | 0.67 | — | -0.68 | — | 152.1 | Gaia DR2 | TICv8 |
| 4799 | 0.97 | 1.82 | — | — | — | 152.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4657 | 0.75 | 0.67 | — | — | — | 152.1 | Q1-Q17 DR25 KOI Table | TICv8 |
| 4799 | 0.97 | 1.82 | — | — | — | 152.1 | Q1-Q12 KOI Table | TICv8 |
| 4657 | 0.75 | 0.67 | — | — | — | 152.1 | Q1-Q17 DR25 KOI Table | TICv8 |
| 4799 | 0.97 | 1.82 | — | — | — | 152.1 | Q1-Q12 KOI Table | TICv8 |
| 4799 | 0.97 | 1.82 | — | — | — | 152.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4661 | — | 0.67 | — | — | — | 152.1 | Rowe et al. 2014 | TICv8 |
| 4707.1 | 0.75 | 0.71 | — | -0.66 | — | 152.1 | TICv8 | TICv8 |
| 4749 | 0.78 | 0.72 | 3.24 | — | — | 152.1 | Morton et al. 2016 | TICv8 |
| 4607 | 0.96 | 2.06 | — | — | — | 152.1 | Batalha et al. 2013 | TICv8 |
| — | — | — | — | — | — | 152.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4799 | 0.97 | 1.82 | — | — | — | 152.1 | Q1-Q16 KOI Table | TICv8 |
| — | — | — | — | — | — | 152.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4607 | — | 2.06 | — | — | — | 152.1 | Q1-Q6 KOI Table | TICv8 |
| 4696 | — | 0.71 | — | — | — | 152.1 | Berger et al. 2018 | TICv8 |
| 4680 | 0.67 | 0.60 | 13.90 | — | — | 152.1 | Q1-Q8 KOI Table | TICv8 |
| 4607 | — | 2.02 | — | — | — | 152.1 | Latham et al. 2005 | TICv8 |